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Finding the Fourth Proportional to 366,828.70, 513,910.10 and 366,828.70

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Solution

The fourth proportional to 366,828.70, 513,910.10 and 366,828.70 is: 513,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,828.70 : 513,910.10 = 366,828.70 : x
  2. Step 2: Convert to fraction form
    366,828.70/513,910.10 = 366,828.70/x
  3. Step 3: Cross multiply
    366,828.70x = 513,910.10 × 366,828.70
  4. Step 4: Simplify right side
    366,828.70x = 188,516,973,899.87
  5. Step 5: Solve for x
    x = 188,516,973,899.87/366,828.70
  6. Step 6: Final answer
    x = 513,910.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.